PDF D-ISM-FN-23 Study Guide

an interface is a logical connection that enables data transfer between devices. There are different types of interfaces that can connect SSD drives to the storage array controller, such as SATA, SAS, PCIe, and NVMe.

One of the types of interface that can connect SSD drives to the storage array controller is NVMe1. NVMe stands for Non-Volatile Memory Express and it is a protocol that enables high-performance communication between SSDs and PCIe bus. NVMe reduces latency and increases throughput by using multiple parallel queues and direct memory access.

Scale-out NAS storage architecture is a type of distributed file system that enables the storage capacity of the system to be expanded as nodes are added. It allows the file system to grow dynamically as nodes are added, allowing for increased scalability and flexibility. This type of architecture is often used in large-scale storage systems, and is particularly useful for managing large datasets.

• TCP Handshake Process: In a TCP connection establishment, the handshake involves three steps: SYN, SYN-ACK, and ACK.
• Exhibit Context: The "X" in the exhibit most likely represents the second step in this process, where the server responds to the client's initial SYN packet with a SYN-ACK.
• Role of SYN-ACK: The SYN-ACK indicates that the server has received the SYN packet and is ready to establish a connection by acknowledging the SYN and sending its own SYN.

References: Dell ISM V5 Course, Module on Networking and Data Transmission Protocols.

NVMe (Non-Volatile Memory Express) uses an embedded PCIe (Peripheral Component Interconnect Express) controller to connect hosts to M.2 storage devices. This direct connection allows for high-speed data transfer and low latency, making NVMe suitable for performance-intensive applications.

References:

• Dell EMC Information Storage and Management V5, Module: Storage Technologies